US20100064908A1 - Press assembly for fibrous materials - Google Patents
Press assembly for fibrous materials Download PDFInfo
- Publication number
- US20100064908A1 US20100064908A1 US12/562,817 US56281709A US2010064908A1 US 20100064908 A1 US20100064908 A1 US 20100064908A1 US 56281709 A US56281709 A US 56281709A US 2010064908 A1 US2010064908 A1 US 2010064908A1
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- Prior art keywords
- chamber
- tramping
- tramper
- compression box
- main compression
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
- B30B9/3078—Presses specially adapted for particular purposes for baling; Compression boxes therefor with precompression means
Definitions
- the present invention relates generally to a press assembly for fibrous substances. More particularly, the present invention relates to a press for use in baling loose cotton.
- the present invention recognizes and addresses the foregoing considerations, and others, of prior art constructions and methods.
- One embodiment of the invention is a press assembly for a fibrous substance, comprising a tramper assembly including a tramping chamber and a tramper, the tramper being movable along a length of the tramping chamber, and a main compressor including a main compression box and a follow block, the follow block being movable along a length of the main compression box.
- the tramping chamber and the main compression box are in communication with each other such that the fibrous substance disposed within the tramping chamber can pass directly from the tramping chamber to the main compression box.
- FIGS. 1A through 1C are side, front and a partial top view of a press assembly in accordance with an embodiment of the present invention
- FIGS. 2A through 2J are side views showing sequential steps in the operation of the press assembly as shown in FIGS. 1A through 1C ;
- FIGS. 3A through 3E are various views of the components of a chain drive of the press assembly as shown in FIGS. 1A through 1C ;
- FIGS. 4A through 4C are side, FIG. 4A , and cross-sectional views, FIG. 4B being along line 4 B- 4 B of FIG. 4A and FIG. 4C being taken along line 4 C- 4 C of FIG. 4A , of a seal arrangement of the press assembly as shown in FIGS. 1A through 1C .
- the press assembly 100 in accordance with a preferred embodiment of the present invention is shown. Note, a portion of the side of the press assembly 100 is removed so that various internal components are visible.
- the press assembly 100 includes a main ram hydraulic cylinder 1 connected to a follow block 2 . Both the main ram hydraulic cylinder 1 and the follow block 2 are mounted vertically and are used to compress low density fibers (not shown) into higher density bales 60 .
- a tramper 3 In line and adjacent to the main ram is a tramper 3 which is driven by a gear motor 4 and a chain drive 5 ( FIGS. 3A through 3E ) mounted externally on either side of the tramping chamber 6 .
- the tramper 3 is connected to the chain drive 5 via a horizontal round shaft 7 .
- the round shaft 7 protrudes outwardly from the tramping chamber 6 through a vertical slot 8 .
- the round shaft 7 is connected to the chain drive 5 via a side link 40 ( FIG. 3A ) that cooperates with a track 50 a , 50 b , 52 a and 52 b ( FIG. 3A ) to prevent lateral motion of the tramper 3 relative to the slot 8 as the tramper 3 travels along the slot 8 longitudinally.
- the tramper 3 and pusher 11 chain drive systems incorporate a feature that causes a pause at the ends of each stroke. The pause is created as the side link 40 rotates around the sprockets 54 .
- Side link 40 is designed such that the pull point, or aperture 44 , to which the round shaft 7 is mounted, is on the centerline of the sprocket 54 , as the side link 40 rotates around the sprockets 54 . As such, little to no lateral motion of the round shaft 7 occurs relative to the slot 8 .
- the side link 40 includes a pair of cam followers 46 that ride in substantially circular end portions 52 a and 52 b of the track as the side link 40 rotates about the sprockets 54 , and in the parallel side portion 50 a and 50 b in between. This can be particularly helpful when stopping at the end of either stroke. This design allows 180 degrees of rotation tolerance to stop within.
- Adjacent and inline with the tramping chamber 6 is a pusher box 10 that includes an infeed hopper 9 to allow loose fibers to be loaded into the pusher box 10 , as needed.
- a pusher 11 is used to compress the loose fibers horizontally until the loose fibers enter the tramping chamber 6 .
- the pusher 11 is driven by a chain drive 5 like the one previously described with regard to the tramper 3 and shown in FIGS. 3A through 3E .
- Side dogs 12 hold the fibers inside the tramper chamber 6 as the pusher 11 is retracted so that an additional amount of loose fibers can be added to the pusher box 10 and compressed into the tramping chamber 6 by the pusher 11 .
- Vertical dogs 13 hold the fibers down as the tramper 3 packs the desired amount of fibers for the bale 60 .
- the enclosed chain driven tramper 3 and pusher 11 provide smooth electric motor control, thus allowing programming options that enable the press assembly 100 to react on demand to changing production conditions.
- the tramper 3 and the pusher 11 can be tuned for increased performance resulting in higher overall efficiency than may exist with known systems. As well, less dependence on hydraulics minimizes power unit size and results in far less leaks.
- An indexing ram 14 is driven by an electric cylinder 15 and is used to move the charge of tramped fibers from below the tramper 3 into a main compression box 16 and below the follow block 2 of the main ram hydraulic cylinder 1 .
- the tramping chamber 6 dimensions are not restricted in horizontal depth to the main compression box 16 dimensions because the boxes are adjacent, thus allowing larger charges of fibers in the tramping chamber 6 than in known fiber presses.
- a three sided lift box 17 is raised and lowered by two lift box hydraulic cylinders 18 .
- the three sided lift box 17 includes four guides 19 that are positioned between rectangular tubes 20 of the vertical column fabrications 21 .
- the vertical column design provides guidance to the three sided lift box 17 while at the same time providing the necessary structural support needed to resist the swelling forces of the fibers generated during compression.
- a back wall of press 22 is stationary and provides the fourth wall required during bale formation.
- the back wall is fitted with chutes 23 for guiding wire tires during manual strap placement from the exit side of the press assembly 100 .
- a hydraulic bale ejector 24 is provided to tilt the bale 60 out of the press assembly 100 onto a customer provided take-a-way system.
- FIGS. 2A through 2J the use of the press assembly 100 to form a bale 60 from a loose fibrous substance is discussed.
- the sequence begins as shown in FIG. 2A , with the bottom of the follow block 2 positioned adjacent the bottom of the tramping chamber 6 and with the lift box 17 in the full down position.
- Loose fibers 58 are put into pusher box 10 through infeed hopper 9 as shown in FIG. 2A .
- the pusher 11 advances transferring and horizontally compressing the fibers into and below tramper chamber 6 .
- FIG. 2C the pusher 11 is retracted and the horizontal side dogs 12 prevent the compressed fibers 58 from expanding back into the pusher box 10 . Additional loose fibers can now be loaded into the pusher box 10 .
- FIG. 2D when the pusher box 10 is full, the pusher 11 advances again doubling the density of the total fiber charge.
- the tramper 3 starts downward and as the tramper 3 reaches mid-stroke, the pusher 11 is retracted to the open position so the pusher box 10 can start being refilled with loose fibers.
- the tramper 3 continues downward until the tramper 3 is below the vertical dogs 13 , and then returned to the full up position. Just before the tramper 3 reaches the full up position, the pusher 11 advances twice and the tramper 3 strokes down and up again. This process continues until the tramper 3 motor load control reaches a set point established by the customer that correlates to the desired bale weight. On the last downward stroke, the tramper 3 stops at full down position.
- the follow block 2 raises to the full up position and the indexing ram 14 advances the fiber charge below the follow block 2 .
- the follow block 2 advances to move the fiber charge from the upper main compression box 16 a to lower main compression box 16 b with the indexing ram 14 forward, and when the bottom of the follow block 2 reaches the bottom of tramping chamber 6 floor, the indexing ram 14 retracts and stops. The tramper 3 and the pusher 11 can now resume activity.
- the follow block 2 continues downward until reaching 30-36 inches of separation from the bottom of the main compression box 16 .
- the lift box cylinders 18 FIG. 1B
- the follow block 2 continues downward to fully compress the fiber charge.
- a bale complete alarm sounds and the bale 60 can be manually or automatically strapped.
- the follow block 2 is raised to the bottom floor of the tramping chamber 6 and stops.
- the bale 60 expands to tighten straps as the main ram hydraulic cylinder 1 raises.
- the bale 60 is ejected onto bale take-a-way system (not shown) by the bale ejector 24 .
- the bale ejector 24 returns to the home position and the lift box 17 is returned to the full down position. When the lift box 17 is fully down, another total charge will be nearing completion and the sequence begins again as the tramper motor load control reaches the set point.
- FIGS. 4A through 4C show a seal arrangement 30 that is self-locking.
- the seal arrangement 30 is to be used on both the tramping chamber 6 and the pusher box 10 to close the longitudinal slots necessary to connect to the chain drive 5 shown in FIGS. 3A through 3E . It is desirable to close the slot in order to prevent fibers or similar product from blowing out of the slot during compression.
- the seal arrangement 30 is “unzipped,” or opened, as the round connection shaft 7 of the side link 40 runs parallel to the slit between the seal halves 31 a and 31 b .
- the seal halves 31 a and 31 b are made of at least two layers, both chosen for different reasons.
- the outer layer is pliable such that the seal halves 31 a and 31 b can deflect and conform to the shape of the round shaft 7 preferably, the outer layer is elastic enough to stretch through an angle 35 at least 75°.
- the inner layer is pliable such that the seal halves 31 a and 31 b can deflect and conform to the shape of the round shaft 7 , but are also rigid enough not to buckle in the closed position, FIG. 4C .
- the seal arrangement 30 is installed at an angle 37 that is 75° to the axis of the round shaft 7 so that the seal halves 31 a and 31 b lock against each other as product builds pressure from inside of the compression chamber.
- a metal retainer 34 assures that the seal halves 31 a and 31 b return to the locked position and not beyond with the seal halves 31 a and 31 b overlapped.
Abstract
A press assembly for fibrous substance including a tramper assembly with a tramping chamber and a tramper, the tramper being movable along a length of the tramping chamber, and a main compressor including a main compression box and a follow block, the follow block being movable along a length of the main compression box. The tramping chamber and the main compression box are in communication with each other such that fibrous substances disposed within the tramping chamber can pass directly from the tramping chamber to the main compression box
Description
- This application claims priority to U.S. Provisional Patent Application Ser. No. 61/098,023, filed Sep. 18, 2008, the entire disclosure of which is incorporated by reference herein.
- The present invention relates generally to a press assembly for fibrous substances. More particularly, the present invention relates to a press for use in baling loose cotton.
- Most fiber presses in use today are double box presses. While a first box is vertically packed with fiber utilizing multiple strokes to a low density (tramping), a second box is vertically packed utilizing one stroke of a ram to a much higher density, making a bale. This type of press is comprised of two boxes mounted on a large turntable, which rotates 180 degrees to place the contents of the boxes below the tramper or the ram alternately. Obviously, it takes a large machine to accomplish this task. As well, the higher the production rate requirement, the faster the turntable must rotate. As would be expected, there are numerous safety concerns during rotation of the turntable and typical installations have nothing more than an alarm to warn laborers of the impending danger.
- The present invention recognizes and addresses the foregoing considerations, and others, of prior art constructions and methods.
- One embodiment of the invention is a press assembly for a fibrous substance, comprising a tramper assembly including a tramping chamber and a tramper, the tramper being movable along a length of the tramping chamber, and a main compressor including a main compression box and a follow block, the follow block being movable along a length of the main compression box. The tramping chamber and the main compression box are in communication with each other such that the fibrous substance disposed within the tramping chamber can pass directly from the tramping chamber to the main compression box.
- The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate one or more embodiments of the invention and, together with the description, serve to explain the principles of the invention.
- A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended drawings, in which:
-
FIGS. 1A through 1C are side, front and a partial top view of a press assembly in accordance with an embodiment of the present invention; -
FIGS. 2A through 2J are side views showing sequential steps in the operation of the press assembly as shown inFIGS. 1A through 1C ; -
FIGS. 3A through 3E are various views of the components of a chain drive of the press assembly as shown inFIGS. 1A through 1C ; and -
FIGS. 4A through 4C are side,FIG. 4A , and cross-sectional views,FIG. 4B being alongline 4B-4B ofFIG. 4A andFIG. 4C being taken alongline 4C-4C ofFIG. 4A , of a seal arrangement of the press assembly as shown inFIGS. 1A through 1C . - Repeat use of reference characters in the present specification and drawings is intended to represent same or analogous features or elements of the invention according to the disclosure.
- Reference will now be made in detail to presently preferred embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation, not limitation, of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope and spirit thereof. For instance, features illustrated or described as part of one embodiment may be used on another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
- Referring now to
FIGS. 1A through 1C , apress assembly 100 in accordance with a preferred embodiment of the present invention is shown. Note, a portion of the side of thepress assembly 100 is removed so that various internal components are visible. Thepress assembly 100, as shown, includes a main ramhydraulic cylinder 1 connected to afollow block 2. Both the main ramhydraulic cylinder 1 and thefollow block 2 are mounted vertically and are used to compress low density fibers (not shown) intohigher density bales 60. In line and adjacent to the main ram is atramper 3 which is driven by a gear motor 4 and a chain drive 5 (FIGS. 3A through 3E ) mounted externally on either side of thetramping chamber 6. Thetramper 3 is connected to thechain drive 5 via a horizontal round shaft 7. The round shaft 7 protrudes outwardly from thetramping chamber 6 through avertical slot 8. The round shaft 7 is connected to thechain drive 5 via a side link 40 (FIG. 3A ) that cooperates with atrack FIG. 3A ) to prevent lateral motion of thetramper 3 relative to theslot 8 as thetramper 3 travels along theslot 8 longitudinally. Thetramper 3 andpusher 11 chain drive systems incorporate a feature that causes a pause at the ends of each stroke. The pause is created as theside link 40 rotates around thesprockets 54.Side link 40 is designed such that the pull point, oraperture 44, to which the round shaft 7 is mounted, is on the centerline of thesprocket 54, as theside link 40 rotates around thesprockets 54. As such, little to no lateral motion of the round shaft 7 occurs relative to theslot 8. Note, theside link 40 includes a pair ofcam followers 46 that ride in substantiallycircular end portions side link 40 rotates about thesprockets 54, and in theparallel side portion - Adjacent and inline with the
tramping chamber 6 is apusher box 10 that includes an infeed hopper 9 to allow loose fibers to be loaded into thepusher box 10, as needed. Apusher 11 is used to compress the loose fibers horizontally until the loose fibers enter thetramping chamber 6. Thepusher 11 is driven by achain drive 5 like the one previously described with regard to thetramper 3 and shown inFIGS. 3A through 3E . Side dogs 12 hold the fibers inside thetramper chamber 6 as thepusher 11 is retracted so that an additional amount of loose fibers can be added to thepusher box 10 and compressed into thetramping chamber 6 by thepusher 11.Vertical dogs 13 hold the fibers down as thetramper 3 packs the desired amount of fibers for thebale 60. Note, the enclosed chain driventramper 3 andpusher 11 provide smooth electric motor control, thus allowing programming options that enable thepress assembly 100 to react on demand to changing production conditions. Thetramper 3 and thepusher 11 can be tuned for increased performance resulting in higher overall efficiency than may exist with known systems. As well, less dependence on hydraulics minimizes power unit size and results in far less leaks. - An
indexing ram 14 is driven by anelectric cylinder 15 and is used to move the charge of tramped fibers from below thetramper 3 into amain compression box 16 and below thefollow block 2 of the main ramhydraulic cylinder 1. Note, thetramping chamber 6 dimensions are not restricted in horizontal depth to themain compression box 16 dimensions because the boxes are adjacent, thus allowing larger charges of fibers in thetramping chamber 6 than in known fiber presses. - A three
sided lift box 17 is raised and lowered by two lift boxhydraulic cylinders 18. The threesided lift box 17 includes fourguides 19 that are positioned betweenrectangular tubes 20 of thevertical column fabrications 21. The vertical column design provides guidance to the threesided lift box 17 while at the same time providing the necessary structural support needed to resist the swelling forces of the fibers generated during compression. A back wall ofpress 22 is stationary and provides the fourth wall required during bale formation. The back wall is fitted withchutes 23 for guiding wire tires during manual strap placement from the exit side of thepress assembly 100. Ahydraulic bale ejector 24 is provided to tilt thebale 60 out of thepress assembly 100 onto a customer provided take-a-way system. - Referring now to
FIGS. 2A through 2J , the use of thepress assembly 100 to form abale 60 from a loose fibrous substance is discussed. The sequence begins as shown inFIG. 2A , with the bottom of thefollow block 2 positioned adjacent the bottom of thetramping chamber 6 and with thelift box 17 in the full down position.Loose fibers 58 are put intopusher box 10 through infeed hopper 9 as shown inFIG. 2A . As shown inFIG. 2B , thepusher 11 advances transferring and horizontally compressing the fibers into and belowtramper chamber 6. As shown inFIG. 2C , thepusher 11 is retracted and the horizontal side dogs 12 prevent thecompressed fibers 58 from expanding back into thepusher box 10. Additional loose fibers can now be loaded into thepusher box 10. As shown inFIG. 2D , when thepusher box 10 is full, thepusher 11 advances again doubling the density of the total fiber charge. - As shown in
FIG. 2E , upon completion of second forward stroke of thepusher 11, thetramper 3 starts downward and as thetramper 3 reaches mid-stroke, thepusher 11 is retracted to the open position so thepusher box 10 can start being refilled with loose fibers. As shown inFIG. 2F , thetramper 3 continues downward until thetramper 3 is below thevertical dogs 13, and then returned to the full up position. Just before thetramper 3 reaches the full up position, thepusher 11 advances twice and thetramper 3 strokes down and up again. This process continues until thetramper 3 motor load control reaches a set point established by the customer that correlates to the desired bale weight. On the last downward stroke, thetramper 3 stops at full down position. - As shown in
FIG. 2G , thefollow block 2 raises to the full up position and theindexing ram 14 advances the fiber charge below thefollow block 2. As shown inFIG. 2H , thefollow block 2 advances to move the fiber charge from the upper main compression box 16 a to lower main compression box 16 b with theindexing ram 14 forward, and when the bottom of thefollow block 2 reaches the bottom of trampingchamber 6 floor, theindexing ram 14 retracts and stops. Thetramper 3 and thepusher 11 can now resume activity. Thefollow block 2 continues downward until reaching 30-36 inches of separation from the bottom of themain compression box 16. As shown inFIG. 2I , the lift box cylinders 18 (FIG. 1B ) extend to strip thelift box 17 upward and stop at the full up position. Thefollow block 2 continues downward to fully compress the fiber charge. When desired final platen separation is obtained, a bale complete alarm sounds and thebale 60 can be manually or automatically strapped. - As shown in
FIG. 2J , after thebale 60 is strapped, thefollow block 2 is raised to the bottom floor of thetramping chamber 6 and stops. Thebale 60 expands to tighten straps as the main ramhydraulic cylinder 1 raises. After strapping, thebale 60 is ejected onto bale take-a-way system (not shown) by thebale ejector 24. Thebale ejector 24 returns to the home position and thelift box 17 is returned to the full down position. When thelift box 17 is fully down, another total charge will be nearing completion and the sequence begins again as the tramper motor load control reaches the set point. - While it is understood that programming is subject to many sequential improvements, one feature not mentioned in the sequence description is the incorporation of one stroke of the pusher at the beginning of each baling cycle. This helps clear the fiber slide and will also be used at the end of each baling cycle to achieve accurate bale weights. Another such improvement is a graduated main ram retract sequence that enables the
follow block 2 to move upward as trampingchamber 6 is filled. The sequence will start when the tramped fibers are stable enough not to bulge into the upper main ram compression chamber. This sequence will reduce the indexing time from trampingchamber 6 needed on high production models. -
FIGS. 4A through 4C show aseal arrangement 30 that is self-locking. Theseal arrangement 30 is to be used on both thetramping chamber 6 and thepusher box 10 to close the longitudinal slots necessary to connect to thechain drive 5 shown inFIGS. 3A through 3E . It is desirable to close the slot in order to prevent fibers or similar product from blowing out of the slot during compression. Theseal arrangement 30 is “unzipped,” or opened, as the round connection shaft 7 of the side link 40 runs parallel to the slit between the seal halves 31 a and 31 b. The seal halves 31 a and 31 b are made of at least two layers, both chosen for different reasons. The outer layer is pliable such that the seal halves 31 a and 31 b can deflect and conform to the shape of the round shaft 7 preferably, the outer layer is elastic enough to stretch through anangle 35 at least 75°. The inner layer is pliable such that the seal halves 31 a and 31 b can deflect and conform to the shape of the round shaft 7, but are also rigid enough not to buckle in the closed position,FIG. 4C . Preferably, theseal arrangement 30 is installed at anangle 37 that is 75° to the axis of the round shaft 7 so that the seal halves 31 a and 31 b lock against each other as product builds pressure from inside of the compression chamber. Ametal retainer 34 assures that the seal halves 31 a and 31 b return to the locked position and not beyond with the seal halves 31 a and 31 b overlapped. - While one or more preferred embodiments of the invention are described above, it should be appreciated by those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope and spirit thereof. It is intended that the present invention cover such modifications and variations as come within the scope and spirit of the appended claims and their equivalents.
Claims (3)
1. A press assembly for a fibrous substance, comprising:
a tramper assembly including a tramping chamber and a tramper, the tramper being movable along a length of the tramping chamber; and
a main compressor including a main compression box and a follow block, the follow block being movable along a length of the main compression box,
wherein the tramping chamber and the main compression box are in communication with each other such that fibrous substances disposed within the tramping chamber can pass directly from the tramping chamber to the main compression box.
2. The press assembly of claim 1 , further comprising a chain drive system configured to move the tramper along the length of the tramping chamber.
3. The press assembly of claim 1 , further comprising a hydraulic cylinder configured to move the follow block along the length of the main compression box.
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US12/562,817 US20100064908A1 (en) | 2008-09-18 | 2009-09-18 | Press assembly for fibrous materials |
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US9802308P | 2008-09-18 | 2008-09-18 | |
US12/562,817 US20100064908A1 (en) | 2008-09-18 | 2009-09-18 | Press assembly for fibrous materials |
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US20100064908A1 true US20100064908A1 (en) | 2010-03-18 |
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US12/562,817 Abandoned US20100064908A1 (en) | 2008-09-18 | 2009-09-18 | Press assembly for fibrous materials |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105151604A (en) * | 2015-07-02 | 2015-12-16 | 合肥白云环卫设备有限公司 | Rubbish compression device |
CN105151603A (en) * | 2015-08-31 | 2015-12-16 | 长沙普惠环保机械有限公司 | Combined push head |
US20160101584A1 (en) * | 2013-04-27 | 2016-04-14 | Jaojin Yang | Briquetting Machine and Briquetting Method for Loose Metal Scraps |
GB2559155A (en) * | 2017-01-27 | 2018-08-01 | Ck International Ltd | Bale press |
US20210370631A1 (en) * | 2020-05-28 | 2021-12-02 | Hermann Schwelling | Lift and tilt device, baler equipped therewith and method of its operation |
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US10245801B2 (en) * | 2013-04-27 | 2019-04-02 | Yaojin Yang | Briquetting machine and briquetting method for loose metal scraps |
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CN105151603A (en) * | 2015-08-31 | 2015-12-16 | 长沙普惠环保机械有限公司 | Combined push head |
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WO2018138224A1 (en) * | 2017-01-27 | 2018-08-02 | CK International Limited | Bale press |
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US20210370631A1 (en) * | 2020-05-28 | 2021-12-02 | Hermann Schwelling | Lift and tilt device, baler equipped therewith and method of its operation |
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